Article
Agricultural Engineering
Wei Tang, Xinxing Wu, Caoxing Huang, Zhe Ling, Chenhuan Lai, Qiang Yong
Summary: This study developed a novel biorefinery method for waste wheat straw, in which a natural surfactant humic acid was used during acidic pretreatment to enhance enzymatic saccharification efficiency. The success of enzymatic digestion was attributed to improved accessibility of cellulose to cellulase and structural changes in lignocellulose. These findings suggest that humic acid may be a beneficial surfactant in biorefinery processes and could potentially inspire research into other natural surfactants.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Physical
N. Bensid, R. Zerdoum, Z. Hattab, Y. Boutaleb, M. Bououdina
Summary: This study prepared intercalated organo-bentonite using CBDAB and investigated its effectiveness in removing benzoic and salicylic acids from wastewater. The results showed that CBDA-bent with high specific surface area and pore volume exhibited promising adsorption capabilities for SA and BA in basic media. The adsorption process was controlled by intraparticle diffusion mechanism with non-spontaneous and endothermic characteristics.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Yeongkyun Son, Yoogyeong Kim, Sungjun Bae, Tae-Hyun Kim, Yuhoon Hwang
Summary: The study demonstrates that organoclays prepared using two different structurally different surfactants exhibit promising chromium adsorption efficiency for in-situ groundwater remediation, making them potential in-situ chromate adsorbents.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Multidisciplinary Sciences
M. A. Deyab, Q. Mohsen
Summary: The use of ionic liquid 1-Hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide has shown close to 99% efficiency in preventing corrosion of C-steel in biodiesel. The adsorption capability and antioxidant properties of the ionic liquid are the major contributors to its anti-corrosion properties, which can help expand the sustainable use of biodiesel as a renewable energy source.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Environmental
An Wang, Meiling Wu, Zhongyuan Li, Yuqiang Zhou, Zhanbin Huang
Summary: In this study, sulfuric acid modified steel slag was synthesized and used for the removal of heavy metal Pb2+ from water. The preparation conditions were optimized using response surface methodology, and the physicochemical properties of the prepared material were analyzed. The adsorption capacity under different conditions was investigated, and kinetic and isotherm models were established to understand the adsorption process. XPS analysis confirmed the adsorption mechanism. This study introduces a novel approach for the resource utilization of steel slag and presents an innovative adsorbent for efficient removal of Pb2+ from aqueous solutions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
M. A. Deyab, Q. Mohsen, E. Bloise, M. R. Lazzoi, G. Mele
Summary: This study reports on the isolation of Oleuropein compound from olive leaf and its anticorrosion potential for copper in acidic cleaning solutions. The experimental results show that Oleuropein is a mixed-type inhibitor and its inhibitory efficacy increases with concentration, particularly at high temperatures. In addition, Oleuropein forms an outer layer on the copper surface, protecting it from severe acid damage.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Chemical
Hajar Merrikhpour, Sara Mobarakpour, Seyedeh Bahareh Azimi
Summary: This study investigates the adsorption capacity of modified bentonite for heavy metal ions in water. The results show that SDS modified bentonite can enhance the adsorption capacity of the natural adsorbents, with the best performance observed at 40 mM.
DESALINATION AND WATER TREATMENT
(2022)
Article
Biotechnology & Applied Microbiology
Priyanka Mukherjee, Sushree Pattnaik, Kali Sanjay, Mamata Mohapatra
Summary: This study demonstrates that the non-ionic surfactant TX-100 enhances the leaching of metals such as Fe, Co, Ni, and Cu from manganese nodules under mild operational conditions. The study also shows that TX-100 enriches the Mn content in the leached residue by impeding its dissolution during leaching. The Mn-enriched residue has been evaluated for energy storage applications, which have not been previously reported in the literature.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Zhimao Zhou, Daqing Yao, Shifei Li, Fei Xu, Ying Liu, Ruixia Liu, Zhaohui Chen
Summary: The paper presents a low-cost method for preparing biochar from biomass by one-step carbonized reduced sulfuric acid, which yields higher biochar production than pyrolysis. The biomass sulfonated char prepared has excellent adsorption performance and supports a wider range of sulfuric acid carbonization methods.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Yixuan Cao, Changjun Zou, Chengjun Wang, Wenjing Chen, Hao Liang, Shuai Lin
Summary: A novel green grafted polymer based on XG and beta-CD was synthesized to suppress the corrosion of X80 steel in sulfuric acid, with β-CD-XG showing superior corrosion inhibition. The inhibitors shielded corrosive media through chemisorption on the metal surface, providing a potential idea for corrosion protection in the petroleum industry.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Environmental Sciences
Nahid Hajipour, Mohammad Ghorbanpour, Majid Safajou-jahankhanemlou
Summary: A new adsorbent was synthesized using ion-exchange, which showed high adsorption rate for methyl orange dye and agreed with pseudo-second-order model and Langmuir equation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Mai A. Khaled, Mohamed A. Ismail, Ahmed. A. El-Hossiany, Abd El-Aziz S. Fouda
Summary: This study investigated the effectiveness of three pyrimidine-bichalcophene derivatives in preventing copper corrosion in 1 M HNO(3) through experimental and computational methods, showing that higher doses and temperatures increased inhibition efficiency. The adsorption of MA-1232 on the copper surface exhibited the best efficiency at a dose of 21 µM at 45 degrees C, with a maximum efficiency of 99.14%. Various thermodynamic parameters were calculated and discussed, while computational chemical approaches aligned with experimental findings.
Article
Biotechnology & Applied Microbiology
Juan Jia, Ping Xue, Lan Ma, Keren Shi, Rui Li
Summary: In this study, industrial bacterial cellulose was functionalized and used as a support for coimmobilizing laccase and acetosyringone for degrading 2,4,5-trichlorophenol in water. The results showed that the solid biocatalyst had high activity and could effectively degrade the pesticide, while reducing phytotoxicity and improving seed germination rate.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Yalan Zhang, Meng Li, Guihai Zhang, Wei Liu, Jinying Xu, Yuansong Tian, Yinfeng Wang, Xingyue Xie, Ziqi Peng, Aimin Li, Ru Zhang, Daishe Wu, Xianchuan Xie
Summary: Bentonite was selected as a coagulant aid, and chitosan-modified bentonite combined with polyglutamic acid was used for enhanced coagulation treatment for starch wastewater. The combination of bentonite, chitosan modification, and polyglutamic acid as a flocculant can effectively and deeply remove pollutants in starch wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Agricultural Engineering
Jianming Guo, Jing Li, Dylan Liu, Yong Xu
Summary: Lignocellulosic biomass, consisting of hemicellulose, lignin, and cellulose, has different effects on the enzymatic digestibility of cellulose. This study successfully overcame the key obstacles to the enzymatic digestibility of poplar cellulose by utilizing three different technologies, resulting in the conversion of cellulose to glucose.
BIORESOURCE TECHNOLOGY
(2024)
Article
Chemistry, Physical
Nadine J. Kanik, Artur Kuligiewicz, Jeffrey T. Cullen
Summary: This study examined the effects of different pre-treatments on the structural H-isotope composition of clay minerals. The results showed that different pre-treatments had varied impacts on different clay minerals, and the choice of pre-treatment should be based on the specific properties and mineralogy of the samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara
Summary: This study proposes Pickering emulsions based on wax and halloysite clay nanotubes for coating silk sutures to increase their loading capacity towards eosin. The presence of halloysite/wax microspheres on the surface of silk sutures has also been explored for controlled release of hydrophobic drugs. The influence of the coating on the thermal and mechanical properties of the sutures has been studied using various techniques. In conclusion, the wax/halloysite Pickering emulsions can successfully generate hydrophobic microdomains on the surface of silk sutures, leading to enhanced flexibility and improved loading capacity towards eosin.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Bruna F. Alves, Rita C. P. Nunes, Luiz C. Bertolino, Elizabete F. Lucas
Summary: Operational problems in the oil industry caused by the precipitation of paraffins can be prevented by using polymeric additives. This article evaluates the use of polymeric nanocomposites as pour point reducers in different types of crude oil and finds that they are more efficient than pure poly(ethylene-covinyl acetate) (EVA) in reducing the pour point. The nanocomposites also modify the wax crystals and reduce the viscosity of the oil samples.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
K. A. Daniels, C. C. Graham, A. C. Wiseall, J. F. Harrington, P. Sellin
Summary: Geological storage with clay buffer is widely preferred for removing hazardous radioactive waste. The impact of fluid salinity and void space on the swelling behavior of barrier bentonites was examined through experiments. The findings suggest that clay swelling is suppressed at higher salinities, which affects the void-filling process.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
N. Werling, A. Kuligiewicz, A. Steudel, R. Schuhmann, F. Dehn, K. Emmerich
Summary: Thermal treatment of clay minerals can be used to produce building materials and environmentally friendly binders. This process involves dehydration, dehydroxylation, breakdown of structure, and recrystallization of high temperature phases. Rehydration and rehydroxylation are important factors to consider for geopolymers and SCM.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Xuan Wang, Hao Ding, Zhuoqun Xu, Jianmeng Zhang, Yanbin Yao
Summary: Rutile nano-TiO2 was loaded onto the surface of sericite to prepare sericite-rutile composite particles, which were then modified with HDTMS and sprayed onto the substrates to form sericite-rutile/HDTMS composite coatings with UV shielding and superhydrophobic self-cleaning properties. The coating exhibited good UV shielding rate and remained superhydrophobic after UV irradiation. The hierarchical structure of the sericite-rutile composite and the low surface energy of HDTMS contributed to the superhydrophobicity and UV shielding effect of the coating.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Nathalie Fagel, Isabel Israde-Alcantara, Reza Safaierad, Marttiina Rantala, Sabine Schmidt, Gilles Lepoint, Pierre Pellenard, Nadine Mattielli, Sarah Metcalfe
Summary: Environmental conditions significantly influence clay minerals, and studying clay sediments in tropical lakes can provide valuable insights into past environmental conditions. In this study, multiproxy records from sediment cores of three crater lakes in central Mexico were analyzed. The results showed that disordered kaolinite, formed through hydrolysis and hydrothermal alteration, was the predominant mineral in the sediments. The abundance of kaolinite varied in relation to organic carbon and organic matter-related elements, and showed opposite trends with lithogenic elements. Geochemical data suggested that the increase in kaolinite abundance is linked to the formation of organo-mineral aggregates and lake level changes in closed basins.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
M. J. Martin-Alfonso, A. Mejia, F. J. Martinez-Boza, P. Partal
Summary: The drilling industry is facing new challenges to develop eco-friendlier drilling fluids. Organic modified sepiolite dispersed in oil can be an excellent additive with suitable rheological properties. This study investigated the effect of alkyl ammonium modifiers on the microstructure and rheological properties of sepiolite-vegetable oil dispersions under high-temperature and high-pressure conditions.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Weiquan Zhan, Siyuan Yang, Shenxu Bao, Liuyi Ren, Cheng Liu
Summary: The interaction between talc and the depressor CMC was investigated through molecular dynamics simulation and density functional theory calculation. It was found that CMC showed stronger adsorption on the edge plane of talc due to enhanced interactions with polar groups and water molecules. The study also revealed specific interactions between H atoms in CMC and O atoms in the edge plane, as well as between O atoms in CMC and Si, Mg atoms in the edge plane. Hydration shells on the basal and edge planes of talc were examined to explain the phenomenon.
APPLIED CLAY SCIENCE
(2024)
Article
Chemistry, Physical
Pierre Dramou, Yiyang Sun, Xu Ni, Fangqi Wang, Hua He
Summary: In this study, a magnetic nanocomposite was prepared and used for the separation of rutin from real samples through magnetic solid phase extraction (MSPE). The nanocomposite exhibited high specific surface area, chemical and thermal stability, water solubility, and easy separation in aqueous solution. Characterization and experiments confirmed the successful synthesis and efficient enrichment ability of the nanocomposite.
APPLIED CLAY SCIENCE
(2024)
